CMake: Fix missing /Zc:preprocessor needed for __VA_OPT__ on MSVC

JGRennison · Oct 4, 2024 · e2f344c · e2f344c
1 parent 7d9d397
commit e2f344c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/cmake/CompileFlags.cmake b/cmake/CompileFlags.cmake
@@ -8,6 +8,9 @@ macro(compile_flags)
         # C++11 standard". We need C++11 for the way we use threads.
         add_compile_options(/Zc:rvalueCast)
 
+        # Needed for __VA_OPT__() in macros.
+        add_compile_options(/Zc:preprocessor)
+
         if(NOT CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
             add_compile_options(
                 /MP # Enable multi-threaded compilation.